package tech.six6.netty;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;

public class HelloServer {
    public static void main(String[] args) throws Exception {
        //定义一对线程组
        //主线程组：用于接收客户端的连接，但是不会做任何处理，跟老板一样，不做事
        EventLoopGroup boosGroup = new NioEventLoopGroup();
        //从线程组：老板线程会把任务丢给他，让手下线程组去做任务
        EventLoopGroup workerGroup = new NioEventLoopGroup();

        try {
            //netty服务器的创建，ServerBootstrap是一个启动类
            ServerBootstrap serverBootstrap = new ServerBootstrap();
            serverBootstrap.group(boosGroup,workerGroup)                //设置主从线程组
                            .channel(NioServerSocketChannel.class)      //设置nio的双向通道
                            .childHandler(null);                        //子处理器，用于处理workerGroup

            //启动Server，并且设置8088为启动的端口号，同时启动方式为同步
            ChannelFuture channelFuture = serverBootstrap.bind(8088).sync();
            //监听关闭的channel，设置为同步方式
            channelFuture.channel().closeFuture().sync();
        } finally {
            boosGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
        }


    }
}
